This database is described in
Iyengar N, Peng C-K, Morin R, Goldberger AL, Lipsitz LA.
Age-related alterations in the fractal scaling of cardiac
interbeat interval dynamics. Am J Physiol 1996;271:1078-1084.
[Abstract]
Please cite this publication when referencing this material, and also
include the standard citation for PhysioNet:
Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG,
Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and
PhysioNet: Components of a New Research Resource for Complex Physiologic
Signals.
Circulation 101(23):e215-e220 [Circulation Electronic Pages;
http://circ.ahajournals.org/cgi/content/full/101/23/e215];
2000 (June 13).
Twenty young (21 - 34 years old) and twenty elderly (68 - 85 years old)
rigorously-screened healthy subjects underwent 120 minutes of continuous supine
resting while continuous electrocardiographic (ECG), and respiration signals
were collected; in half of each group, the recordings also include an
uncalibrated continuous non-invasive blood pressure signal. Each subgroup of
subjects includes equal numbers of men and women.
All subjects remained in a resting state in sinus rhythm while watching the
movie Fantasia (Disney, 1940) to help maintain
wakefulness. The continuous ECG, respiration, and (where available) blood
pressure signals were digitized at 250 Hz. Each heartbeat was
annotated using an automated arrhythmia detection algorithm, and each beat
annotation was verified by visual inspection.
Records f1y01, f1y02, ... f1y10 and f2y01, f2y02, ...
f2y10) were obtained from the young cohort, and records f1o01,
f1o02, ... f1o10 and f2o01, f2o02, ... f2o10) were obtained from
the elderly cohort. Each group of subjects includes equal numbers of men and
women. Each record includes ECG (with beat annotations) and respiration, and
half of those in each group (the f2* records) include a blood pressure
waveform, as noted above.
The beat annotations for a subset of these recordings were previously available
in a different format; these are still available here.
Name Last modified Size Description
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Parent Directory -
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ANNOTATORS 02-Mar-2003 17:29 58 list of annotators
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MD5SUMS 12-Jul-2005 23:09 5.3K
RECORDS 02-Mar-2003 17:27 240 list of record names
SHA1SUMS 12-Jul-2005 23:11 6.3K
SHA256SUMS 18-Sep-2007 13:37 9.3K
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f1o01.dat 27-Sep-1994 23:49 6.9M digitized signal(s)
f1o01.ecg 27-Sep-1994 23:48 14K corrected annotations
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f1o01.hea 14-Mar-2009 09:48 123 header file
f1o02.dat 21-Jul-1994 15:16 6.9M digitized signal(s)
f1o02.ecg 21-Jul-1994 21:28 13K corrected annotations
f1o02.hea 14-Mar-2009 09:48 125 header file
f1o03.dat 26-Jul-1994 12:26 6.9M digitized signal(s)
f1o03.ecg 15-Aug-1994 16:02 14K corrected annotations
f1o03.hea 14-Mar-2009 09:48 125 header file
f1o04.dat 25-Nov-1994 19:51 6.9M digitized signal(s)
f1o04.ecg 25-Nov-1994 20:40 12K corrected annotations
f1o04.hea 14-Mar-2009 09:48 122 header file
f1o05.dat 10-Jan-1995 00:04 5.9M digitized signal(s)
f1o05.ecg 11-Jan-1995 02:39 11K corrected annotations
f1o05.hea 14-Mar-2009 09:48 124 header file
f1o06.dat 10-Jan-1995 00:24 6.9M digitized signal(s)
f1o06.ecg 11-Jan-1995 23:36 12K corrected annotations
f1o06.hea 14-Mar-2009 09:48 125 header file
f1o07.dat 28-Apr-1995 23:06 6.9M digitized signal(s)
f1o07.ecg 30-May-1995 11:37 14K corrected annotations
f1o07.hea 14-Mar-2009 09:48 126 header file
f1o08.dat 06-Jun-1994 11:20 6.9M digitized signal(s)
f1o08.ecg 07-Jun-1994 13:38 17K corrected annotations
f1o08.hea 14-Mar-2009 09:48 125 header file
f1o09.dat 24-Feb-1995 19:28 6.9M digitized signal(s)
f1o09.ecg 24-Feb-1995 20:51 9.6K corrected annotations
f1o09.hea 14-Mar-2009 09:48 124 header file
f1o10.dat 10-Jan-1995 01:24 6.9M digitized signal(s)
f1o10.ecg 12-Jan-1995 00:11 16K corrected annotations
f1o10.hea 14-Mar-2009 09:48 124 header file
f1y01.dat 05-May-1994 11:51 6.9M digitized signal(s)
f1y01.ecg 05-May-1994 15:45 17K corrected annotations
f1y01.hea 14-Mar-2009 09:48 123 header file
f1y02.dat 21-Jul-1994 15:42 6.9M digitized signal(s)
f1y02.ecg 21-Jul-1994 21:52 14K corrected annotations
f1y02.hea 14-Mar-2009 09:48 125 header file
f1y03.dat 21-Feb-2003 14:05 6.9M digitized signal(s)
f1y03.ecg 05-Apr-1994 17:02 15K corrected annotations
f1y03.hea 14-Mar-2009 09:48 124 header file
f1y04.dat 06-Apr-1994 09:50 6.9M digitized signal(s)
f1y04.ecg 06-Apr-1994 15:59 11K corrected annotations
f1y04.hea 14-Mar-2009 09:48 125 header file
f1y05.dat 12-Aug-1994 12:31 7.0M digitized signal(s)
f1y05.ecg 15-Aug-1994 16:13 14K corrected annotations
f1y05.hea 14-Mar-2009 09:48 124 header file
f1y06.dat 08-Jun-1994 11:20 6.9M digitized signal(s)
f1y06.ecg 25-Jun-1994 18:38 14K corrected annotations
f1y06.hea 14-Mar-2009 09:48 121 header file
f1y07.dat 21-Feb-2003 14:05 6.9M digitized signal(s)
f1y07.ecg 31-Mar-1994 17:14 12K corrected annotations
f1y07.hea 14-Mar-2009 09:48 125 header file
f1y08.dat 10-Jan-1995 00:44 7.0M digitized signal(s)
f1y08.ecg 11-Jan-1995 23:53 14K corrected annotations
f1y08.hea 14-Mar-2009 09:48 123 header file
f1y09.dat 24-Feb-1995 19:08 6.9M digitized signal(s)
f1y09.ecg 24-Feb-1995 20:03 16K corrected annotations
f1y09.hea 14-Mar-2009 09:48 122 header file
f1y10.dat 11-May-1994 11:22 6.9M digitized signal(s)
f1y10.ecg 25-Jun-1994 19:19 17K corrected annotations
f1y10.hea 14-Mar-2009 09:48 124 header file
f2o01.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o01.ecg 05-Oct-2001 11:35 14K corrected annotations
f2o01.hea 27-Feb-2003 02:29 158 header file
f2o02.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o02.ecg 05-Oct-2001 12:25 12K corrected annotations
f2o02.hea 27-Feb-2003 02:21 161 header file
f2o03.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o03.ecg 05-Oct-2001 11:37 13K corrected annotations
f2o03.hea 27-Feb-2003 02:21 160 header file
f2o04.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o04.ecg 05-Oct-2001 11:37 13K corrected annotations
f2o04.hea 27-Feb-2003 02:28 156 header file
f2o05.dat 21-Feb-2003 14:06 7.6M digitized signal(s)
f2o05.ecg 05-Oct-2001 11:38 17K corrected annotations
f2o05.hea 27-Feb-2003 02:28 163 header file
f2o06.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o06.ecg 05-Oct-2001 11:39 10K corrected annotations
f2o06.hea 27-Feb-2003 02:28 160 header file
f2o07.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o07.ecg 05-Oct-2001 11:40 12K corrected annotations
f2o07.hea 21-Feb-2003 14:06 164 header file
f2o08.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2o08.ecg 05-Oct-2001 11:40 14K corrected annotations
f2o08.hea 27-Feb-2003 02:27 166 header file
f2o09.dat 21-Feb-2003 14:06 7.6M digitized signal(s)
f2o09.ecg 05-Oct-2001 11:41 12K corrected annotations
f2o09.hea 27-Feb-2003 02:26 159 header file
f2o10.dat 21-Feb-2003 14:06 7.3M digitized signal(s)
f2o10.ecg 05-Oct-2001 11:42 16K corrected annotations
f2o10.hea 27-Feb-2003 02:26 162 header file
f2y01.dat 21-Feb-2003 14:06 7.6M digitized signal(s)
f2y01.ecg 05-Oct-2001 11:42 16K corrected annotations
f2y01.hea 27-Feb-2003 02:26 158 header file
f2y02.dat 21-Feb-2003 14:06 10M digitized signal(s)
f2y02.ecg 05-Oct-2001 11:43 13K corrected annotations
f2y02.hea 27-Feb-2003 02:25 160 header file
f2y03.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2y03.ecg 05-Oct-2001 11:44 13K corrected annotations
f2y03.hea 27-Feb-2003 02:24 161 header file
f2y04.dat 21-Feb-2003 14:06 7.6M digitized signal(s)
f2y04.ecg 05-Oct-2001 11:45 17K corrected annotations
f2y04.hea 27-Feb-2003 02:24 163 header file
f2y05.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2y05.ecg 05-Oct-2001 11:45 18K corrected annotations
f2y05.hea 27-Feb-2003 02:24 162 header file
f2y06.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2y06.ecg 05-Oct-2001 11:46 13K corrected annotations
f2y06.hea 27-Feb-2003 02:24 161 header file
f2y07.dat 21-Feb-2003 14:06 7.5M digitized signal(s)
f2y07.ecg 05-Oct-2001 11:47 13K corrected annotations
f2y07.hea 27-Feb-2003 02:23 160 header file
f2y08.dat 21-Feb-2003 14:06 7.8M digitized signal(s)
f2y08.ecg 05-Oct-2001 11:47 15K corrected annotations
f2y08.hea 27-Feb-2003 02:23 161 header file
f2y09.dat 21-Feb-2003 14:06 7.7M digitized signal(s)
f2y09.ecg 05-Oct-2001 11:48 18K corrected annotations
f2y09.hea 27-Feb-2003 02:23 163 header file
f2y10.dat 21-Feb-2003 14:06 7.7M digitized signal(s)
f2y10.ecg 05-Oct-2001 11:49 14K corrected annotations
f2y10.hea 27-Feb-2003 02:22 162 header file
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